Improvement in combined rotary cultivator and harrow



fiillnti*il'" tapes' aaiwt @twice Latas Patent N 95,394, datea-se1aaar2s, 1869.

IMPRovEMENT 1N cot/ namen RQTARY cULTIvA'roR AND IIEARROW.

The Schedule referred to insthese Letters Patent and makingpart-of the seme.

To all whom it may concern.:

Be it known that I, vHENRY T. TArLIN, of Smith New Market, in the county of Rockingham, and State of New Hampshire, have invented a new and; useful Improvement in Combined Rotary (lultivator and Harrow; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being. had to the accompanying drawings, forming part 0i this specification, in which- Figure l is a vertical longitudinal section of my improved machine, taken through the line x it, iig. 2.

Figure 2 is a vertical cross-section of the same, taken through the line yy, tig. 1.

Figure 3 is a detail top view of the revolving plate that carries the cultivator and barrow-teeth.

Similar letters of reference indicate corresponding parts.v

'My invention has for its object to furnish an 4improved machineffor stirring the ground and destroying the grass and weeds between the rows of plants, which shall be simple iu construction and effective in operation; and

It consists in the construction and combination of the various parts of the machine, as hereinafter more fully described.

A are the wheels, which are securely attached to the axle B, so as to carry the said axle with them in their revolution.

The axle B revolves in bearings attached'to thev frame C, with which the other .parts'of the machine are connected.

To the axle B is attached a bevel-gear wheel, D, the teeth of which mesh into the teeth ofthe bevel-v gear wheel E, attached to the upper-'end of the vertifcal shaft F, which revolves in and isi supported by bearings, Gr, connected with the frame C.

The lower part of the shaft F hasl a squarejholer or socket formed longitudinallyiu'it to receive the square upper endof the shaft H, so as'to carryvthe,said'shaft,I l

H with it in its revolution, 'and at the same;v jtime all low the said shaft H tov be moved upand down lvertically withiu it.

'lhe vertical movement of the shaft H, in the'jshaft F, is limited, and at the same time. the said' shaft H is kept from dropping ont of the said shaft F, lbythei stop-pin I, lwhich is attached to the shaft. F, and e11- ters a longitudinal groove or slot in the shaft H, as shown in tig. l.

The shaft H revolves in and at the sanne time is supported against side pressure by the bearings J, connected with the frame C, as shown in iig. 2.

'lo the lower end of the shaft H is adjustably secured by means of a set-screw, as shown in iig. 3, a plate, k, the upper sideoi' which is grooved radially with live, more or less, dovetailed grooves to receive the inner ends of the dovetailed arms L, which are adjustably secured in place by set-screws, as shown in figs. l and 2. y v Through the outer ends of .the arms L' are formed vertical holes, to 'receive the cutters or teeth M, wherey they are adjustably-secured in pla-ce by setscrews, as shown in Ags.i1,e2, and 3.

Upon one end of "each of the teeth M is formed a cutter, fm', projecting at right angles from the body of the teeth, as' shown in figs. l and 2.

The other ends of the. teeth M are pointed in the` same manner as ordinary barrow-teeth, so that by simply reversing thc teeth M, the machine may be used as a cultivator or harrow, as may be required.

N is a circular cutter attached to the lower end of the shank or shaft n', whichI enters a hole or socket formed in the .lower end ofthe shaft H. where it is detachably secured in placeby a set-screw, .as shown in fig. 1.

When the machine is to be, used as a harrowfthe cutter N should be detached.

0 is a bent lever, which is pivoted at its angle to a'support, P, attached to the frame C.

One end of the lever lO extends up into such a position that lit may be conveniently reached and operated by the driver.

The other end'of the lever O is connected with the vend of the lever Q by a short connecting-link or. bar, R.

The lever Qhas a hole formed through it, through which the lowerpart of the shaft H passes, said shaft having a shoulder formed upon itto rest upon the said 7lleve1'.;- g

H The other endof .the -lever Q is pivoted to some suitable support,- as S, attached to the frame By this` construction, the plate k and its attachments 'may be conveniently raised from the ground,

-whe'n desired, for passing obstructions,'or other purposes.

byhand, or they may be made large, to be operated by horse-power, as-'may be desired.

' Having thus described my invention,

' I claim as new, and desire `to secure by Letters arms L, in combination with the revolving-plate lr,

substantially as herein shown and described, and for theipurpose set forth.

3. The combination of the teeth vM, adjustablev i arms L, revolving-platellr, shafts H and F, gearwheels E and D, afxle E, wheels A', and frame C, with -Q with the shaft H, plate k, adjustable arms L, and each other, substantially as herein shown and de teeth M,.substantially as herein shown and described, scribed, and for the purpose set forth. and for the purpose set forth. i

4. The combination ot' the detachable circular eut HENRY T. TAPLIN. ter N n with the shaft. H, plate k, adjustable arms 4\lVit|1esses: .Y L, and teeth M, substantially as herein shownV and L. S. PEASE, described, and for the purpose set forth. J. O. HANSON. 5. The combination of the bent lever O and leir FRED. CURTIS. 

